To prepare a strawberry poppy seed cream cheese muffins recipe, first you need to prepare the ingredients. First, you'll need the following ingredients: 1 cup softened butter, 1 tablespoon vanilla, 2 tablespoons granulated sugar, 1/2 teaspoon cinnamon, 1/4 teaspoon nutmeg, and 1 teaspoon salt. Mix the wet and dry ingredients until they're just combined. Then, add the buttermilk and mix until it's completely incorporated. Next, pour the batter into muffin tins and bake for 18 to 20 minutes, or until the toothpick inserted in the center comes out clean.