In a 8x8 baking pan combine the steel cut oats, chopped walnuts, baking powder, sea salt. Stir to mix together
In a separate bowl whisk together almond milk, egg, maple syrup, vanilla extract and butter/ coconut oil.
Pour the wet mixture over the steel cut oat mixture. Shake the pan to let the wet mixture soak in. Top the oat mixture with your berries in a single layer. Press the berries into the oats so they are half way covered. You can do this without berries too.
Top the berries with the 3/4 of the crumble - I like to save some of the crumble for serving up to you!
Bake in the oven for 30-35 minutes. I like to check on it at 30 minutes, if it's getting too brown on the top you can cover it and turn the oven down to 350 but I didn't need to.
I like to top ours with my Strawberry Chia Seed Jam and the leftover crumble! Enjoy