For the streusel:

Cooking spray or paper muffin liners

1/3 cup all-purpose flour

1/4 cup packed dark or light brown sugar

1 pinch kosher salt

2 tablespoons unsalted butter, melted

For the cream cheese mixture:

1 large egg, at room temperature

8 ounces cold cream cheese

1/3 cup granulated sugar

1 teaspoon vanilla extract

1/4 teaspoon kosher salt

For the muffins:

3/4 cup granulated sugar

1 teaspoon vanilla extract

1/2 teaspoon kosher salt

2 large eggs

1 (15-ounce) can pumpkin purée (not pumpkin pie filling)

1/2 cup neutral oil, such as canola or vegetable oil

1 tablespoon Pumpkin Pie Spice

1 3/4 cups all-purpose flour

1 teaspoon baking soda

1/2 teaspoon baking powder