Base muffin batter
01 -
3 cups (360 g) all-purpose flour
02 -
1 tablespoon plus 1 teaspoon baking powder
03 -
1/2 teaspoon baking soda
04 -
3/4 teaspoon fine salt
05 -
3/4 cup (150 g) granulated sugar
06 -
1/2 cup (100 g) packed light brown sugar
07 -
3/4 cup (170 g) unsalted butter, melted and cooled slightly
08 -
3 large eggs, room temperature
09 -
3/4 cup (180 g) sour cream, room temperature
10 -
3/4 cup (180 ml) milk, room temperature
11 -
2 teaspoons vanilla extract
Strawberry chocolate chip portion
12 -
1/3 cup (45 g) diced strawberries, patted dry
13 -
3 tablespoons mini chocolate chips
Blueberry crumble portion
14 -
1/3 cup (50 g) blueberries
15 -
2 tablespoons all-purpose flour
16 -
1 tablespoon light brown sugar
17 -
1 tablespoon cold unsalted butter
18 -
Pinch of cinnamon
Banana chocolate chip portion
19 -
1/3 cup (75 g) mashed ripe banana
20 -
3 tablespoons mini chocolate chips
21 -
1 tablespoon all-purpose flour, if banana is very soft
Lemon poppy seed portion
22 -
1 teaspoon finely grated lemon zest
23 -
1 tablespoon fresh lemon juice
24 -
1 teaspoon poppy seeds
Apple cinnamon portion
25 -
1/3 cup (40 g) finely diced peeled apple
26 -
1/4 teaspoon ground cinnamon
Optional topping
27 -
1-2 tablespoons coarse sugar, for sprinkling