These apple blackberry muffins are made with less sugar than typical recipes. Grated apple adds both moisture and natural sweetness, resulting in a hearty muffin perfect for breakfast.

These muffins fall into the “healthier” muffin category: made with oats, yogurt or sour cream, grated apple, and fresh blackberries. The grated apple replaces much of the sugar while contributing texture and moisture, so you get tender muffins without an overly sweet taste.
What you need
This recipe follows a simple formula shared with similar low-sugar muffin recipes. It relies on whole-ingredient flavor—cinnamon, vanilla, and grated apple—to make the muffins taste sweet without adding much sugar.
Fruit purées or grated fruit are common substitutions for sugar in baking because they bring natural sugar, moisture, and structure. In this recipe, grated Golden Delicious apples add sweetness and keep the crumb soft. Cinnamon and vanilla enhance perceived sweetness, so don’t skip them.

How to make them
Use the traditional muffin method: mix dry ingredients in one bowl and wet ingredients in another, then fold them together until just combined. Treat the brown sugar as part of the wet ingredients so it dissolves evenly; whisking it with the wet mixture prevents lumps of sugar in the batter.

Substitutions
You can substitute plain yogurt for sour cream. Both are acidic and work with the leavening, but full-fat sour cream produces a more tender, moister crumb. If you prefer a lighter option, use 2% or plain yogurt—expect a slightly different texture.

Baking tips
Silicone liners and paper liners both work. Silicone may extend the bake time slightly because it insulates more. If using frozen blackberries, keep them frozen and add directly to the batter so they don’t bleed and make the batter soggy.

Freezer storage and defrosting
The muffins keep at room temperature for up to four days. This recipe yields 12 muffins, so freezing part of the batch is convenient. Freeze in a single layer in a freezer bag, then microwave a frozen muffin 20–30 seconds on high to defrost and warm it—this restores the texture and makes it taste freshly baked.

Other recipes to bake with blackberries
If you enjoy blackberries, try them in desserts such as apple blackberry crumble with an oat topping or in an almond-layer cake. Blackberries pair especially well with oats, citrus, and warm spices like cinnamon and nutmeg.
If you tried this recipe for the best apple blackberry muffins, please leave a star rating and share your feedback in the comments. I love hearing from readers!
📖 Recipe
Hearty Apple Blackberry Muffins
These apple blackberry muffins are made with oats and grated apple, producing a low-sugar, hearty breakfast muffin.
Equipment
- Muffin pan
- 3-¼ oz scoop (optional)
- Whisk
Ingredients
- 250 g bleached all-purpose flour
- 65 g rolled oats (plus extra for sprinkling)
- 10 mL baking powder
- 5 mL ground cinnamon
- 2.5 mL baking soda
- 2.5 mL fine kosher salt (reduce if using table salt)
- 2 large eggs
- 125 mL sour cream (or plain yogurt)
- 70 g dark brown sugar
- 2 Golden Delicious apples, grated
- 115 g unsalted butter, melted
- 250 g fresh blackberries (frozen works—do not defrost)
- Turbinado or cinnamon sugar and extra oats for topping
Instructions
- Preheat the oven to 350°F (175°C). Line two 6-cup muffin pans with paper liners or prepare silicone liners.
- In a large bowl, whisk together the flour, oats, baking powder, cinnamon, baking soda, and salt.
- In another bowl, whisk the eggs with the sour cream (or yogurt) and brown sugar until combined.
- Grate the apples and whisk them into the wet mixture. While whisking, drizzle in the melted butter to incorporate.
- Pour the wet ingredients into the dry ingredients and stir until just combined—do not overmix.
- Fill each prepared muffin cup halfway with batter. Place two blackberries on top of the batter in each cup.
- Top with remaining batter and berries, pressing them gently to anchor. Sprinkle coarse sugar and a few oats on each muffin.
- Bake for about 45 minutes, or until golden and a tester inserted in the center comes out clean. Muffins should spring back when lightly pressed.
- Cool in the pan for 5 minutes, then transfer to a wire rack. Serve warm or at room temperature.
Notes
- If using table salt instead of kosher salt, use half the amount to avoid over-salting.
- To freeze, cool completely, freeze in a single layer in a freezer bag, and microwave a frozen muffin 20–30 seconds to defrost and warm.
Nutrition
Nutrition information is an approximation.
