Introduction
Imagine biting into a tender, rich muffin where pockets of tart raspberries burst in your mouth, all beneath a buttery, crunchy oat streusel. This recipe strikes the perfect balance between sweet and tart, with a texture that’s both light and satisfyingly substantial. You’ll find the sour cream creates an incredibly moist crumb that stays delicious for days.
Prep & Cook Time
Prep Time: 15 minutes
Cook Time: 30 minutes
Total Time: 45 minutes
Servings: 12 muffins
Ingredients
- 1/2 cup (1 stick) unsalted butter, softened
- 2 cups all-purpose flour
- 1 cup full-fat sour cream
- 1/2 cup granulated sugar
- 1/2 cup packed brown sugar
- 2 large eggs
- 1 teaspoon kosher salt
- 1 teaspoon pure vanilla powder (use half this amount if you prefer less rich vanilla flavor)
- 2 teaspoons baking powder
- 1 cup fresh raspberries (can substitute frozen)
- 1/2 cup granulated sugar
- 1/4 cup (1/2 stick) butter (softened)
- 1/2 cup rolled oats
- 1/4 cup all-purpose flour
- 1/4 teaspoon ground cinnamon
Instructions
- Preheat your oven to 375°F (190°C). Line a 12-cup standard muffin tin with paper liners or grease thoroughly.
- Prepare the streusel topping: In a small bowl, combine the 1/2 cup granulated sugar, 1/4 cup softened butter, 1/2 cup rolled oats, 1/4 cup all-purpose flour, and 1/4 teaspoon ground cinnamon. Use a fork or your fingers to mix until crumbly. Set aside.
- Make the muffin batter: In a large mixing bowl, cream together the 1/2 cup softened butter, 1/2 cup granulated sugar, and 1/2 cup packed brown sugar until light and fluffy.
- Beat in the 2 large eggs, one at a time, followed by the 1 teaspoon pure vanilla powder (use half this amount if you prefer less rich vanilla flavor) and 1 cup sour cream. Mix until just combined.
- In a separate bowl, whisk together the 2 cups all-purpose flour, 2 teaspoons baking powder, and 1 teaspoon kosher salt.
- Gently fold the dry ingredients into the wet ingredients using a spatula, mixing only until no large flour streaks remain. Be careful not to overmix.
- Gently fold in the 1 cup fresh raspberries.
- Divide the batter evenly among the 12 prepared muffin cups, filling each about 3/4 full.
- Generously sprinkle the prepared streusel topping over each mound of batter, pressing it down lightly so it adheres.
- Bake for 25-30 minutes, or until the streusel is golden brown and a toothpick inserted into the center of a muffin comes out clean or with a few moist crumbs (but no wet batter).
- Let the muffins cool in the pan for 5 minutes before transferring them to a wire rack to cool completely.
Variations
- Lemon Zest: Add the zest of one lemon to the wet ingredients for a bright, citrusy twist that complements the raspberries.
- Mini Muffins: Bake as mini muffins for about 15-18 minutes, perfect for brunch spreads or snacks.
- Crumb Cake Style: Press half the batter into a greased 8-inch square pan, sprinkle with half the streusel, add the remaining batter, and top with the rest of the streusel. Bake for 35-40 minutes.
- Glazed Finish: For extra sweetness, drizzle cooled muffins with a simple glaze made from powdered sugar and a little milk or lemon juice.
Tips for Success
- Use cold butter for the streusel to achieve a clumpy, crumbly texture rather than a paste.
- For tall, bakery-style muffin tops, fill the liners almost to the top and bake at the higher 375°F temperature.
- To ensure even distribution, lightly toss the raspberries in a tablespoon of the measured flour before folding them in.
Storage & Reheating
Store cooled muffins in an airtight container at room temperature for up to 3 days, or freeze for up to 3 months. To reheat, warm a muffin in the microwave for 15-20 seconds or in a 300°F oven for 5-10 minutes to refresh the streusel’s crunch.
FAQ
Can I use frozen raspberries?
Why is my streusel melting into the batter?
This usually means your butter was too soft or warm. For best results, use cold, cubed butter and work it in quickly with your fingers until coarse crumbs form.
My muffins are dense. What happened?
Dense muffins are often caused by overmixing the batter. Once you add the flour, mix only until the ingredients are just combined, even if a few small lumps remain.
Can I make these muffins ahead of time?
Absolutely. You can prepare the streusel topping and the dry ingredient mixture the night before. Store them separately in the fridge and counter, then combine everything in the morning.
Can I reduce the sugar?
Is kosher salt necessary?
You can use fine table salt, but use only 3/4 teaspoon since it’s more concentrated by volume than kosher salt.