1 and 3/4 cups all-purpose flour (spooned & leveled)
1 teaspoon baking soda
1 teaspoon baking powder
1 teaspoon ground cinnamon
1/2 teaspoon salt
1/2 cup unsalted butter, softened to room temperature
1/2 cup packed brown sugar
1/4 cup granulated sugar
2 large eggs, at room temperature
1/2 cup plain Greek yogurt, at room temperature
1 teaspoon pure vanilla extract
1/4 cup (60ml) milk (any kind), at room temperature
1 and 1/2 cups peeled & chopped apples and pears (1/2-inch chunks, from about 2–3 medium apples/pears).
Instructions
Preheat oven to 425°F. Spray two muffin pans with nonstick spray or line with cupcake liners. (Makes approximately 15 muffins, so either bake in 2 dozen size muffin tins or bake one at a time in the same one).
Make the crumb topping: Combine the brown sugar, granulated sugar, and cinnamon in a medium-sized bowl. Incorporate the melted butter, followed by gently blending in the flour using a fork. Maintain the mixture in coarse crumbles without over-mixing. Set the topping aside.
Make the muffins: In a large bowl, thoroughly mix the flour, baking soda, baking powder, cinnamon, and salt. Set this mixture aside.
Using a hand-held or stand mixer equipped with a paddle attachment, whip the butter and both sugars on high speed until they achieve a smooth and creamy consistency, typically around 2 minutes. Be sure to scrape down the sides and bottom of the bowl as necessary. Next, introduce the eggs, yogurt, and vanilla extract, and beat on medium speed for about a minute. Increase the speed to high until the mixture is blended and largely creamy, even if it appears slightly curdled—it’s perfectly fine. Again, scrape down the sides and bottom of the bowl as needed. With the mixer operating on low speed, blend the dry ingredients and milk into the wet ingredients until no pockets of flour remain. Gently fold in the apples and pears.
Spoon the batter evenly into muffin tin, filling each all the way to the top. Spoon crumb topping on each, gently pressing it down so it sticks.
Bake for 5 minutes at 425°F, then, keeping the muffins in the oven, reduce the oven temperature to 350°F. Bake for an additional 15–18 minutes or until a toothpick inserted in the center comes out clean. These muffins take about 20–23 minutes total in the oven. Allow the muffins to cool for 5 minutes in the muffin pan, then transfer to a wire rack to continue cooling. Serve and enjoy!
Iced or plain muffins stay fresh covered at room temperature for a few days or in the refrigerator for up to 1 week.