Step 1

Preheat the oven to 350°F. Grease a 9-inch pie dish well with baking spray, set aside.

Step 2

In a medium-sized bowl, whisk together the rolled oats, flour, brown sugar, cinnamon, and salt.

Step 3

Add the butter to the bowl, and using your fingers (no need for a food processor), roll the butter along with the other ingredients through your fingertips until you form a cookie dough-like texture. Try to work the butter in as much as you can so there are no large lumps of butter in the mix.

Step 4

Press the crust into the pie tin, set aside.

Step 5

In a large bowl, whisk together the sugar, brown sugar, milk powder, cinnamon, and salt.

Step 6

Add the melted butter and stir to combine.

Step 7

Add the cream, egg yolks, and vanilla, stir until combined and smooth.

Step 8

Pour the filling into the pie crust (scrape sides of the bowl).

Step 9

Bake the pie for 30 minutes at 350°F. Lower the oven temperature to 325°F and bake an additional 20-30 minutes until the top is browned and has formed a crust.

Step 10

The center will still be jiggly, that is okay! Let cool on a wire rack for 2 hours.

Step 11

Place in the fridge uncovered to chill overnight. Add a generous dusting of powdered sugar before serving.