Preheat the oven to 350F/177C convection (325F/163C conventional) and line 15 muffin tins with cupcake liners (preferably a light colored pan).
In a medium bowl, whisk together the cake flour, baking powder, salt, spices and sugars until they're evenly distributed (whisk well).
1 1/2 cup (172g) cake flour, 1 1/2 tsp baking powder, 1/4 tsp fine sea salt, 2 tsp ground cinnamon, 1 tsp ground nutmeg, 1/2 cup (100g) granulated sugar, 1/2 cup (100g) light brown sugar
Add the oil and butter to the dry ingredients and beat together until they're combined.
1/4 cup (60mL) canola oil, 1/4 cup (56g) salted butter
Add the egg and vanilla extract and paste and mix until they're fully combined.
1 large egg, 1 tsp pure vanilla extract
Add the sour cream and turn the mixer to low speed, while streaming the milk in. Scrape the edge of the bowl and mix just until the cupcake batter is smooth.
1/2 cup (113g) sour cream, 1/3 cup (80mL) whole milk
Fill each cupcake liner about 2/3 full, about 45 grams of batter per cupcake.* You should have enough for 15 cupcakes.
Top with the apple pie filling, about 20-25 grams per cupcake, and bake for 22-25 minutes. If you press on the cupcake gently, it should bounce back. You can also insert a toothpick through the side to make sure the batter is baked.
Remove them from the oven and let them cool in the cupcake pan for 10 minutes, then move them to a cooling rack. Allow the cupcakes to cool completely before frosting.