Brown the Butter: In a small saucepan, melt the unsalted butter over medium heat. Once melted, stir in the milk powder and continue cooking, stirring frequently. When the butter starts to brown, immediately turn off the heat. Add the oats and stir for 1-2 minutes to lightly toast them. Remove from heat and allow the mixture to cool.
10 Tablespoons (142 g) unsalted butter, 2 Tablespoons milk powder, 1 1/4 cup oatmeal (106 g)
Blot the Pumpkin: Place the 1/2 cup (114 g) of pumpkin purée onto a few layers of paper towels or a clean kitchen towel. Gently press down with more paper towels to absorb the excess moisture. Repeat this process until the pumpkin is drier and you have about 65 grams of pumpkin. Set aside.
1/2 cup pumpkin (114 g), 65 grams after blotting
Mix Wet Ingredients: In a large bowl, combine the cooled brown butter oat mixture, brown sugar, egg yolk, vanilla extract, cinnamon, pumpkin pie spice, and blotted pumpkin purée. Stir until smooth.
3/4 cup (150 g) brown sugar, 1 egg yolk, 1 1/2 teaspoons cinnamon, 1 teaspoon vanilla extract, 1 teaspoon pumpkin pie spice
Combine Wet and Dry: Add the flour, baking soda, and salt. Lightly whisk the dry ingredients on top of the wet mixture to combine the baking soda and salt. Then, fold the dry ingredients into the wet until fully incorporated.
3/4 cup all purpose flour (98 g), 1/2 teaspoon baking soda, 1/2 teaspoon kosher salt
Scoop: Preheat your oven to 350°F (175°C) and line two baking sheets with parchment paper. Using a medium cookie scoop (I used a #40 cookie scoop which holds about 1.7 Tablespoons), portion the dough onto the prepared sheets, spacing them about 2 inches apart.
Bake: Bake for 10-11 minutes or until the cookies are lightly golden around the edges. Let them cool on the baking sheets for a few minutes before transferring to a wire rack.
Melt the Cream Cheese: In a medium bowl, add the softened cream cheese and butter. Microwave for about 30 seconds, then stir until smooth. If needed, heat for an additional 15 seconds until the mixture is completely smooth.
4 ounces full fat cream cheese, softened, 2 Tablespoons (28 g) unsalted butter, softened
Add the Powdered Sugar: Stir in the powdered sugar and vanilla extract. Continue stirring until the glaze is smooth. If the glaze is too thick or not smooth enough, microwave in 15-second intervals.
1 cup (113 g) powdered sugar, 1 teaspoon vanilla
Glaze the Cookies: Once the cookies have cooled, drizzle or spread the cream cheese glaze over the tops. Store the cookies in the refrigerator and serve chilled.