Preheat your oven to 350°F (180°C) and grease a 9-inch round cake pan with butter or line it with parchment paper.
In a large bowl, whisk together 1/2 cup butter and 1 cup sugar until creamy. Add 3 eggs and fully combine them into the mixture while mixing. Slowly add 1 cup Greek yogurt and combine everything until smooth.
1/2 cup butter, 1 cup sugar, 3 eggs, 1 cup Greek yogurt
Add 1 cup all-purpose flour, 2 tsp baking powder, 1 pinch salt and 1/2 cup cocoa powder to the wet mixture. Mix everything until just combined. Do not overmix the cake batter for a tender cake crumb. Slowly fold in 3/4 cup semi-sweet chocolate chips with a large spoon and transfer the batter into the greased cake pan. Smooth the top with a spatula or the back of a large spoon.
1 cup all-purpose flour, 2 tsp baking powder, 1/2 cup cocoa powder, 1 pinch salt, 3/4 cup semi-sweet chocolate chips
Bake the chocolate cake in the preheated oven for 40-45 minutes or until a toothpick inserted into the center of the cake comes out clean. Remove the cake from the oven and let it cool in the pan for 10 minutes, then transfer it to a wire rack to cool completely.
Notes
Room temperature: Use butter and eggs stored at room temperature ingredients for easier mixing and an even texture.Storage: This moist chocolate cake can typically last in an airtight container or plastic wrap 2-3 days at room temperature, 5-7 days in the refrigerator. For longer storage, freeze slices or the entire cake for up to 3 months.