Preheat your oven to 350°F (175°C). Grease and flour a bundt pan or a wreath-shaped cake pan to prevent sticking.

In a medium bowl, whisk together the flour, baking powder, baking soda, and salt. Set aside.

In a large bowl, cream together the softened butter and granulated sugar until light and fluffy, about 3-5 minutes.

Add the eggs, one at a time, beating well after each addition. Stir in the vanilla extract.

Gradually add the dry ingredients to the wet mixture, alternating with the sour cream. Begin and end with the dry ingredients and mix until just combined.

Add a few drops of green food coloring to the batter and mix until the desired shade of green is achieved.

Pour the batter into the prepared pan, smoothing the top with a spatula.

Bake for 35-40 minutes, or until a toothpick inserted into the center comes out clean.

Allow the cake to cool in the pan for 10 minutes, then transfer it to a wire rack to cool completely.

Once the cake has cooled, decorate with assorted red and green candies to resemble a festive wreath.