01 -
Get your oven heated to 350°F. Coat a rectangular baking dish (around 7.5x6 inches) with some cooking spray to stop sticking, then set it nearby.
02 -
Use a food processor or blender to blitz the oats until they turn into a fine, floury texture.
03 -
Add milk, eggs, salt, baking powder, and vanilla into the blender with the oats. Blend just until it all comes together and has a slight thickness.
04 -
Pour half the batter into the baking dish and smooth it out. Gently spread the jam on top, keeping some batter visible along the edges. Add the rest of the batter on top and smooth it out.
05 -
Put the dish in the oven and bake for 20 to 25 minutes. The edges should be golden. Cool it for 5 minutes before cutting.
06 -
Mix powdered sugar, milk, and vanilla, whisking until smooth. Spread it over the cooled oats and sprinkle some colorful bits for fun, if you’d like.