Step 1: Preheat the Oven

• Set the temperature: Preheat your oven to 375°F (190°C).
• Prepare the muffin tin: Line a 12-cup muffin tin with paper liners or lightly grease each cup.

Step 2: Mix the Dry Ingredients

• Combine flour and leavening agents: In a large bowl, whisk together the flour, granulated sugar, brown sugar, baking powder, baking soda, and salt.

Step 3: Prepare the Wet Ingredients

• Whisk the liquids: In a separate bowl, whisk together the melted butter, eggs, vanilla extract, and buttermilk until well combined.

Step 4: Combine Wet and Dry Ingredients

• Mix gently: Pour the wet ingredients into the dry ingredients and stir until just combined. Do not overmix, as this can make the muffins dense.

Step 5: Prepare the Strawberries

• Coat with flour: Toss the diced strawberries with 1 tablespoon of flour to prevent sinking in the batter.
• Fold into the batter: Gently fold the strawberries into the muffin batter.

Step 6: Bake the Muffins

• Fill the muffin cups: Divide the batter evenly among the muffin cups, filling each about 3/4 full.
• Bake until golden: Bake for 18–22 minutes, or until a toothpick inserted into the center comes out clean.

Step 7: Cool and Serve

• Let them rest: Allow the muffins to cool in the pan for 5 minutes before transferring them to a wire rack.
• Enjoy warm or at room temperature: Serve plain or with butter.