Preheat the oven to 350 degrees F (175 degrees C). Line muffin cups with paper liners.

Beat cake mix, eggs, hot water, vegetable oil, pudding mix, and poppy seeds together in a large bowl with an electric mixer on low until blended, about 4 minutes. Pour into lined muffin cups to about 1/3 full.

Bake in the preheated oven until golden and the tops spring back when lightly pressed, about 20 minutes.