Ingredients
Muffin Batter
- 2 1/2 cups all purpose flour
- 1/2 cup granulated sugar
- 1/4 cup brown sugar
- 2 tsp baking powder
- 1/4 tsp baking soda
- 1/2 tsp salt
- 1/3 cup buttermilk
- 1/2 cup vegetable oil
- 2 eggs
- 1 Tbsp lemon zest
- 2 Tbsp fresh lemon juice
- 6 Tbsp sour cream
- 1 1/2 tsp vanilla extract
- 1 1/2 cups blueberries
- 1 Tbsp all purpose flour (for tossing blueberries)
Crumb Topping
- 6 Tbsp butter, melted
- 1/2 cup brown sugar
- 2/3 cup all purpose flour
- 1 tsp lemon zest
Lemon Glaze
- 1/2 cup powdered sugar
- 1 Tbsp lemon juice
Instructions
- Preheat and Prepare Muffin Tin: Preheat your oven to 400°F (204°C) and line a muffin tin with paper liners to prevent sticking and ease cleanup.
- Mix Dry Ingredients: In a large bowl, combine 2 1/2 cups flour, granulated sugar, brown sugar, baking powder, baking soda, and salt. Whisk these ingredients together evenly.
- Add Wet Ingredients to Dry: Create a well in the center of the dry mix. Pour in buttermilk, vegetable oil, and crack in two eggs. Stir gently until the batter is just combined, maintaining a thick consistency.
- Incorporate Flavors: Add lemon zest, lemon juice, sour cream, and vanilla extract to the batter. Mix just until combined to preserve moisture and texture.
- Prepare Blueberries: Toss blueberries with 1 tablespoon flour to coat them, which helps prevent them from sinking in the batter. Fold them into the batter carefully.
- Fill Muffin Cups: Spoon the batter into the lined muffin tin, filling each cup about two-thirds full. This recipe yields approximately 18 muffins.
- Make Crumb Topping: In a separate bowl, mix lemon zest, flour, and brown sugar. Pour in melted butter and stir until crumbly lumps form creating the crumb topping.
- Add Crumb Topping: Generously sprinkle the crumb mixture over each muffin cup, lightly pressing the crumbs into the batter for better adherence.
- Bake Muffins: Place the muffin tin in the oven and bake for 16 to 18 minutes or until the muffins are golden brown and a toothpick inserted into the center comes out clean.
- Prepare Glaze: While muffins bake, whisk together powdered sugar and lemon juice to make the glaze. Allow the muffins to cool for 5 to 10 minutes after baking before drizzling the glaze over the top.
- Serve and Enjoy: Let the glaze set for a minute, then enjoy your zesty, moist Lemon Blueberry Crumb Cake Muffins fresh from the tin or stored for later.
Notes
- Tossing the blueberries in flour is essential to keep them evenly distributed in the batter and prevent sinking.
- Do not overmix the batter to keep the muffins tender and fluffy.
- The crumb topping adds a delightful crunchy texture; be generous for best results.
- If fresh blueberries are unavailable, frozen berries can be used but do not thaw before adding to batter.
- Adjust baking time slightly if using jumbo muffin tins; muffins may need a few extra minutes.
- The lemon glaze can be omitted if preferred, or replaced with a simple dusting of powdered sugar.
- Prep Time: 15 minutes
- Cook Time: 18 minutes
- Category: Breakfast / Snack
- Method: Baking
- Cuisine: American