Quick Keto Blueberry Mug Cobbler

Snacks

March 11, 2026

Got a sudden craving for something sweet, warm, and comforting, but don’t want to derail your keto goals? I’ve been there! This Keto Blueberry Mug Cobbler is your new best friend. It’s a single-serving miracle that comes together in minutes, delivering all the jammy, berry goodness and buttery crumble topping you love, without the sugar crash. Say goodbye to dessert deprivation and hello to your new favorite guilt-free treat!

Ingredients

• For the Blueberry Filling
• 1/2 cup / 70g frozen or fresh berries
• 1 tsp / 5ml erythritol or xylitol
• 1/8 tsp salt
• 1/8 tsp xanthan gum OR 1/8 tsp psyllium husk powder OR 1/4 tsp coconut flour
• For the Cobbler Topping
• 1 tbsp / 14g butter, melted
• 3 tbsp almond flour
• 1 tsp erythritol or xylitol
• 1/4 tsp salt, optional, omit if using salted butter

Instructions

1. In a large, microwave-safe mug (at least 1 cup / 250ml), mix together the berries, sweetener, salt, and your thickener of choice until well combined.
2. Microwave the berry mixture for 60-90 seconds, stirring halfway through. Use a shorter time for fresh berries. The filling should be bubbly and slightly thickened, but remember it will set more as it cools.
3. In a separate small bowl, mix the melted butter, almond flour, sweetener, and optional salt until a crumbly dough forms.
4. Microwave the topping mixture for 20-30 seconds. Be very careful not to overcook, as it burns easily. The top may look soft, but the bottom will be cooked and browned.
5. Use a fork to break up the cooked topping into crumbles and sprinkle it over your warm berry filling. Enjoy immediately!

Nutritional Information

• Nutrition Information
• Disclaimer: Nutrition is estimated using MyFitnessPal and may not be 100% accurate.
• Serving Size: 1 mug cobbler
• Calories: 260 kcal
• Net Carbs: 8g
• Fat: 10g
• Protein: 6g
• Sugar: 5g

Pro Tips

• Watch the topping closely! It can go from perfect to burnt in seconds. Mix it halfway through its short cooking time to check the browning on the bottom.
• Don’t over-thicken the berries. The filling will continue to set and thicken as it cools. It should still be a little saucy when you take it out of the microwave.
• Swap your berries! This recipe works beautifully with raspberries, blackberries, or a mixed berry blend. Just be mindful of the carb count for different fruits.
• Add a pinch of cinnamon to the crumble topping or a dash of lemon juice to the berry filling to make the flavors pop.

FAQ

Q: Can I use other berries in this keto mug cobbler
A: Yes, this recipe works wonderfully with other low-carb berries like raspberries, blackberries, or a mixed berry blend. Just be sure to adjust for any differences in carb counts.

Q: What can I use instead of xanthan gum
A: If you don’t have xanthan gum, you can use 1/8 tsp of psyllium husk powder or 1/4 tsp of coconut flour as a thickener for the berry filling, as listed in the ingredients.

Q: How do I prevent the cobbler topping from burning
A: The almond flour topping cooks very quickly in the microwave. To prevent burning, watch it closely during its short 20-30 second cooking time. It’s a good idea to check it halfway through to see how the bottom is browning.

Q: Is this keto mug cobbler gluten-free
A: Yes, this recipe is naturally gluten-free as it uses almond flour for the topping instead of traditional wheat flour.

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