Preheat oven to 350 degrees F (175 degrees C).
Pit your cherries and cut into smaller pieces, if needed. This may take a while, and there are a few techniques you can try! A metal straw may work, but you can also use a knife to cut them open and remove the pits. We weigh the cherries after pitting!
We also halve about 9 cherries to place along the top for decoration, but this is optional!
Mix together the cherries for the batter (not the decorating cherries) and 1 tbsp of flour. Mix to coat the cherries. This should help keep the cherries from sinking in the cake!
Butter/oil a baking tin (we used a round, 9 inch cake pan) and cut out a sheet of parchment paper in a circle to cover the bottom.
Beat eggs and granulated sugar together in the bowl of a stand mixer/mixing bowl until light in color and doubled or tripled in size. Use a stand mixer with a whisk attachment, or an electric hand mixer - it will be more difficult to whisk by hand, but it can be done!
Meanwhile, mix together dry ingredients (flour, baking powder, salt) in a separate bowl. Whisk these together to remove any lumps.
Mix together vanilla extract, milk, and oil in a liquid measuring cup to make it easier to pour.
Begin by adding in half of the dry ingredients to the egg and sugar mixture. You can either fold these ingredients in, or run the mixer for about 5-10 seconds until most of the flour is incorporated.
Then, add in half of the liquid ingredients, and either fold it in with a spatula or run the mixer for another 5-10 seconds.
Repeat the process, adding in dry ingredients and mixing, then adding in wet ingredients and mixing.
Now you should have a smooth batter that is runnier than a pound cake batter, but should still have some body to it.
Add the cherries (coated in flour) to the batter. Fold the batter a few times to make sure the cherries are evenly distributed, but try not to overmix at this point.
Pour the batter into your baking tin and level out the top as needed.
Add halved cherries around the edge of the cake. You can use cherries to decorate the top however you want!
Bake for 40-45 mins, or until a cake tester emerges clean from the center of the cake. (Baking time will depend on your baking tin and oven. A shallower, larger cake tin will take less time, while a smaller but deeper tin may take longer. Glass tins also tend to take longer than dark, nonstick ones. Ovens range, so keep an eye on the cake!)
Remove from cake tin after it has cooled down for around 5 minutes and let cool on a wire rack.
After cooling, dust with powdered sugar (optional). Slice and enjoy! This cake keeps for about 3 days, covered at room temperature.