Preheat the oven to 350f.
Line the cake pan with parchment paper and spray with spray extra virgin olive oil or avocado oil.
In a bowl add in 1 3/4 cup all purpose einkorn flour, 1 1/2 tsp. baking powder, 1/4 tsp. baking soda, 1/2 tsp. pink himalayan salt.
In another bowl, add in 3 egg whites Whisk together about 1 minute until the egg whites turn foamy.
Add in the 3/4 cup organic cane sugar and whisk another 30 seconds.
Add in 1/4 cup butter melted, 1/2 cup Greek yogurt, 1/4 cup whole milk and 1 tbsp. vanilla bean paste.
Whisk together about 1 minute until combined.
Slowly add in the flour mixture to the wet mixture. Add it in 1/3's untilcombined- but do not over beat.
Pour into the prepared cake pan and bake 25-30 minutes.
Start checking 5 minutes early because oven temperatures can vary.