In a microwave-safe mug, mix together cottage cheese, lemon juice, lemon zest, honey, vanilla extract, and egg until smooth.
Stir in almond flour, poppy seeds, baking powder, and salt until well combined.
Microwave the mug on high for about 1 minute, or until the cake has risen and is set in the center.
Let the mug cake cool for a minute before enjoying it straight from the mug or transferring it to a plate.
