In a medium bowl, mix the cream cheese, egg, powdered sugar, and vanilla, just until combined. It should still be thick and overbeating makes it really soft. Drop tablespoonfuls of the cheesecake mixture onto a baking sheet lined with parchment paper and stick them in the freezer for 20 minutes or so while working on the rest of the recipe.
8 ounces cream cheese, 1 large egg, 1/2 cup powdered sugar, 1 teaspoon pure vanilla extract
Heat oven to 375°F. Line the cups in a muffin pan with paper liners.
In a medium bowl, combine the flour, baking powder, cinnamon, pumpkin pie spice, and salt, then whisk together. In a separate bowl, combine the eggs, oil, granulated sugar, brown sugar, pumpkin puree and vanilla extract and whisk together. Stir the dry ingredients into the wet ingredients, mixing just until combined.
2 1/2 cups all-purpose flour, 2 teaspoons baking powder, 2 teaspoons ground cinnamon, 1 1/2 teaspoons pumpkin pie spice*, 1/2 teaspoon salt, 2 large eggs, 1/2 cup vegetable oil, 1 1/4 cups granulated sugar, 1/2 cup brown sugar, 1 1/2 cups pumpkin puree, 2 teaspoons pure vanilla extract
For the streusel topping, combine the granulated sugar, brown sugar, flour and cinnamon in a small bowl. Use a pastry cutter or fork to cut the cold butter into the sugar & flour until the mixture is coarse and crumbly. Set aside.
2 Tablespoons granulated sugar, 2 Tablespoons brown sugar, 4 Tablespoons all-purpose flour, 3 Tablespoons salted butter, 1/2 teaspoon ground cinnamon
Fill each muffin cup about half full with batter. Spoon about 1 tablespoon of the cream cheese mixture on top of the muffin batter. Divide the remaining batter among the muffin cups, covering the cream cheese completely. Top each muffin with the streusel mixture.
Bake the muffins for 20-25 minutes, then cool completely before serving.