Whole Lemon Poppy Seed Coffee Cake

Name: Whole Lemon Poppy Seed Coffee Cake
Prep time: 15 min
Cook time: 1 h 10 min
Total time: 1 h 10 min
Yield: 16 portions
Ingredients: unsalted butter; 6 oz all-purpose flour; 1 ½ oz sugar; 1 ½ oz brown sugar; ¼ tsp salt; ¼ tsp ground cinnamon; 3 oz unsalted butter; 1 lemon; 10 oz sugar; 3 large eggs; 4 oz plain yogurt; 4 oz olive oil; 1 tsp vanilla extract; 9 oz all-purpose flour; 2 tbsp poppy seeds; 2 tsp baking powder; ¼ tsp baking soda; ¼ tsp salt; whipped cream