Step 1

Preheat oven to 350 degrees Fahrenheit. Prepare your Bundt pan by oiling and flouring the sides and bottom of the pan.

Step 2

In the bowl of a stand mixer (or in a large bowl with a hand mixer), cream the butter and sugar until light and fluffy. Add sour cream and sourdough discard, mixing until well combined.

Step 3

Add one egg at a time with the mixer on low, then add vanilla.

Step 4

In a separate bowl, mix the flour, baking powder, baking soda, and salt.

Step 5

With the mixer on low, alternate adding 1/3 of the dry ingredients and 1/3 of the milk until combined.

Step 6

Pour into your prepared Bundt pan. Tap on the counter a few times to even it out.

Step 7

Bake for 50 - 60 minutes or until a toothpick comes out clean. Let the cake cool in the pan for 15 - 20 minutes before inverting on a wire rack to cool completely.

Step 8

Make the glaze by whisking the milk and powdered sugar until smooth, then drizzle over the top.