Grapefruit Poppyseed Mini Bundt Cakes

Mini bundt Cakes:

• 1 1/2 cups all-purpose flour plus extra for dusting pans
• 1/2 tsp baking powder
• 1/2 tsp baking soda
• 1/2 cup butter unsalted, room temperature, 8 tbsp / 1 stick
• 1/2 cup granulated sugar
• 2 large egg room temperature
• 1 medium grapefruit preference for Rio or Red variety, zest and juice separated
• 2 tbsp poppy seeds
• 1/2 cup milk whole preferred

Icing:

• 1 cup icing sugar aka confectioners sugar
• 1-2 tbsp grapefruit juice fresh squeezed