Insanely Moist Slow Cooker Raspberry Muffin Cake Recipe

July 17, 2025

Picture this: your house smells like a cozy bakery, but you didn’t spend hours slaving over the oven. That’s the magic of slow cooker desserts! My Slow Cooker Raspberry Muffin Cake has become my go-to when I’m craving something sweet but don’t want to fuss. It’s got all the moist, fruity goodness of raspberry muffins – just in cake form (because who has time to scoop batter into individual tins?).

Slow Cooker Raspberry Muffin Cake - detail 1

I’ll never forget the first time I tried baking a cake in my slow cooker – I was skeptical, but one bite of that tender crumb studded with tart raspberries convinced me. Now I make this almost weekly during berry season. The best part? You literally dump everything in one bowl, give it a quick stir, and let the slow cooker work its magic while you go about your day. No fancy techniques, no stressing over oven temperatures – just simple, delicious results every time.

Why You’ll Love This Slow Cooker Raspberry Muffin Cake

Trust me, once you try this recipe, you’ll wonder why you ever baked cakes any other way. Here’s what makes it so special:

  • Unbelievably moist texture: The slow cooker’s gentle heat keeps every bite tender – no dry crumbs here!
  • Effortless baking: Just mix, pour, and let the slow cooker do all the work while you relax (or tackle that pile of laundry).
  • Bursts of fruity flavor: Tart raspberries melt into the cake, creating little pockets of jammy goodness in every slice.
  • No oven required: Perfect for hot summer days when turning on the oven feels like a crime.

Seriously, it’s like having your favorite bakery treat without leaving home – or breaking a sweat.

Ingredients for Slow Cooker Raspberry Muffin Cake

Here’s everything you’ll need to make this dreamy cake – and yes, I’ve made it enough times to know these measurements by heart now! The beauty is in the simplicity:

  • 2 cups all-purpose flour (spooned and leveled – no packing!)
  • 1 cup sugar (I use regular white, but brown sugar adds a nice depth too)
  • 1 tsp baking powder + 1/2 tsp baking soda – our rising dream team
  • 1/2 tsp salt (trust me, it makes all the flavors pop)
  • 1 cup milk (any kind works – I’ve used everything from whole to almond milk)
  • 1/2 cup butter, melted (and slightly cooled so it doesn’t cook the eggs)

  • 1 tsp vanilla extract (the good stuff if you have it)
  • 1 large egg (room temp blends in smoother)
  • 1 1/2 cups raspberries (fresh OR frozen – no need to thaw frozen ones, just toss them in!)

See? Nothing fancy – just pantry staples that come together in the most magical way.

How to Make Slow Cooker Raspberry Muffin Cake

Okay, let’s get baking! This is seriously one of the easiest cakes you’ll ever make – just wait until you see how simple these steps are. I’ve made this so many times I could probably do it in my sleep now!

Step 1: Prepare the Slow Cooker

First things first – grab that slow cooker insert and give it a good greasing. I use butter (because why not?), but cooking spray works too. Really get into all the nooks and crannies – we don’t want any precious cake sticking to the sides!

Slow Cooker Raspberry Muffin Cake - detail 2

Step 2: Mix Dry and Wet Ingredients

Now, in one bowl, whisk together all your dry ingredients (flour, sugar, baking powder, baking soda, and salt). In another bowl, mix the milk, melted butter, vanilla, and egg until smooth. Pour the wet into the dry and stir just until combined – lumps are totally fine! Overmixing makes tough cake, and we want tender, right?

Step 3: Fold in Raspberries

Here comes the fun part – gently fold in those beautiful raspberries with a spatula. I like to save a handful to press into the top before cooking for extra berry goodness. Be gentle though – we want whole berries, not mush!

Step 4: Cook and Check Doneness

Pour the batter into your prepared slow cooker, cover, and cook on high for 2 hours. At the 2-hour mark, do the toothpick test – if it comes out clean, you’re golden! If not, check every 15 minutes. Slow cookers vary, but mine usually takes about 2 hours 15 minutes. Don’t be alarmed if the top looks moist – that’s normal!

Slow Cooker Raspberry Muffin Cake - detail 3

Tips for the Perfect Slow Cooker Raspberry Muffin Cake

After countless batches (and happy taste-testers!), I’ve picked up some foolproof tricks to make sure your cake turns out perfect every time:

  • Berry best: Fresh raspberries give the brightest flavor, but frozen work great too – just toss them in frozen to prevent bleeding.
  • Mix with mercy: Stop stirring the batter as soon as ingredients combine – overmixing leads to dense cake sadness.
  • Early bird checks: Start testing at 2 hours – slow cookers can vary, and overcooked cake breaks my heart.
  • Serve warm: Let it cool just enough to handle, then dig in! The berries are extra jammy when warm.

Follow these simple tips, and you’ll be a slow cooker cake pro in no time!

Variations for Slow Cooker Raspberry Muffin Cake

One of my favorite things about this recipe is how easily you can switch it up! Here are some delicious tweaks I’ve tried (and loved):

  • Berry swap: Blueberries or blackberries work beautifully if raspberries aren’t your thing.
  • Chocolate twist: Fold in 1/2 cup chocolate chips with the berries – the combo is divine!
  • Zesty upgrade: Add 1 tbsp lemon zest to the batter for a bright, tangy kick that pairs perfectly with the berries.
  • Nutty crunch: Sprinkle sliced almonds on top before cooking for a lovely texture contrast.

Really, the possibilities are endless – that’s the beauty of this versatile cake!

Serving Suggestions

Oh, let me tell you how we love serving this cake in my house! A dollop of freshly whipped cream melts dreamily into the warm crumb, or – my personal weakness – a scoop of vanilla ice cream that creates little rivers of creamy goodness. For a simpler touch, just dust with powdered sugar right before serving – it looks so pretty against those ruby-red raspberry pockets!

Storage and Reheating

This cake keeps beautifully in an airtight container at room temperature for about 3 days – if it lasts that long! For longer storage, wrap individual slices in plastic wrap and freeze for up to 2 months. When those cravings hit, just pop a slice in the microwave for 15-20 seconds until warm and gooey again. Pure comfort food magic!

Nutrition Information

Just so you know what you’re enjoying (no judgment here!), here’s the nutritional breakdown per slice. Remember, these are estimates – your exact numbers might dance around a bit depending on your ingredients:

  • Calories: 280
  • Sugar: 20g
  • Sodium: 250mg
  • Fat: 12g (7g saturated)
  • Carbs: 40g
  • Fiber: 2g
  • Protein: 4g

Now go ahead and savor every bite – life’s too short not to enjoy cake!

Frequently Asked Questions

I’ve gotten so many great questions about this recipe over the years – here are the ones that pop up most often with my tried-and-true answers:

Can I use frozen raspberries? Absolutely! In fact, I keep a bag in my freezer specifically for last-minute cake cravings. No need to thaw them first – just toss them in frozen to prevent too much juice from bleeding into the batter.

Can I double the recipe? I wouldn’t recommend it – slow cookers bake best with a single batch. Doubling could lead to uneven cooking or overflow (learned that one the messy way!). If you need more, make two separate batches.

How do I prevent a soggy cake? The key is not overcooking it! Start checking at 2 hours – that sweet spot between done and overdone is narrower than you’d think. Also, resist peeking too often – every lift of the lid lets precious steam escape.

Share Your Experience

I’d love to hear how your Slow Cooker Raspberry Muffin Cake turns out! Drop a note below if you tried any fun variations or have tips to share. Seeing your creations always makes my day – it’s like we’re baking together across the miles!

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35 Insanely Moist Slow Cooker Raspberry Muffin Cake Recipe

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A moist and flavorful cake inspired by raspberry muffins, made easily in a slow cooker.

  • Author: Kitchen Hub
  • Prep Time: 15 mins
  • Cook Time: 2-3 hours
  • Total Time: 2 hours 15 mins - 3 hours 15 mins
  • Yield: 8 servings 1x
  • Category: Dessert
  • Method: Slow Cooker
  • Cuisine: American
  • Diet: Vegetarian

Ingredients

Scale
  • 2 cups all-purpose flour
  • 1 cup sugar
  • 1 tsp baking powder
  • 1/2 tsp baking soda
  • 1/2 tsp salt
  • 1 cup milk
  • 1/2 cup butter, melted
  • 1 tsp vanilla extract
  • 1 egg
  • 1 1/2 cups fresh or frozen raspberries

Instructions

  1. Grease the slow cooker insert with butter or cooking spray.
  2. In a large bowl, mix flour, sugar, baking powder, baking soda, and salt.
  3. In another bowl, whisk milk, melted butter, vanilla, and egg.
  4. Combine wet and dry ingredients until just mixed.
  5. Fold in raspberries gently.
  6. Pour batter into the slow cooker.
  7. Cover and cook on high for 2-3 hours or until a toothpick comes out clean.
  8. Let cool slightly before serving.

Notes

  • Use fresh raspberries for best results.
  • Check cake after 2 hours to prevent overcooking.
  • Serve warm with whipped cream or ice cream.

Nutrition

  • Serving Size: 1 slice
  • Calories: 280
  • Sugar: 20g
  • Sodium: 250mg
  • Fat: 12g
  • Saturated Fat: 7g
  • Unsaturated Fat: 4g
  • Trans Fat: 0g
  • Carbohydrates: 40g
  • Fiber: 2g
  • Protein: 4g
  • Cholesterol: 55mg

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