Step 1

Preheat the oven to 350℉. Line a 12-cup muffin tin with parchment paper liners or cupcake liners. Set aside.*The recipe makes 18 muffins so if you have two 12-cup muffin pans then prepare both of them.

Step 2

In a large bowl, using an electric hand mixer, beat the butter, granulated sugar, and light brown sugar until light in color & fluffy; about 1-2 minutes.

Step 3

Add in the pure pumpkin, eggs, and half and half. Beat until combined.

Step 4

Add in the all-purpose flour, pumpkin pie spice, baking powder, and baking soda. Beat on low speed, just until combined and no flour streaks or pockets remain in the pumpkin batter.

Step 5

Fill each muffin tin about 3/4 full with muffin batter.

Step 6

Make The Streusel Topping : In a small mixing bowl, add the softened butter, flour, light brown sugar, walnuts, and pumpkin pie spice. Use a fork or wooden spoon to stir everything together until the ingredients are full incorporated. Crumble some streusel topping on top of each muffin.

Step 7

Bake for 20-25 minutes or until a toothpick inserted comes out clean.*You can also gently press on the tops of the muffins with your finger and the muffin should bounce back when it's baked.

Step 8

Remove the muffins from the oven and allow them to cool completely before glazing.

Step 9

Make The Simple Pumpkin Spice Glaze : In a small bowl, whisk together the powdered sugar, half and half, and pumpkin pie spice until combined and smooth. Add more powdered sugar (or milk) in order to get your desired consistency. Drizzle the glaze over each cooled muffin and let the glaze set for about 10 minutes before serving.