Scotch Oat Cake with Broiled Brown Sugar Topping (vegan)

Where to put this? It's cake, so that implies dessert. But, it's like a coffee cake in that you would serve this crumbly confection with coffee. Does that mean it's breakfast or bread? I'll keep it as a dessert. 

I based this off a cake I made several years ago. I made the recipe vegan, and I altered some of the ratios. Very tasty. I brought it to work so that I would not eat the entire thing myself. Nearly every person I gave a piece to said how good it is. 

INGREDIENTS:

1 cup apple juice
2/3 cup Scotch oats or steel-cut oats or bulgur wheat
1 2/3 cups whole wheat pastry flour
1 teaspoon baking soda
1 cup brown sugar or raw sugar
1/2 teaspoon salt
1/2 Tbsp lemon juice
1/2 cup almond milk
1/4 cup canola oil
1 1/2 teaspoons vanilla extract

Topping:
3 tablespoons vegan stick butter, melted
1/2 teaspoon vanilla extract
1/2 cup brown sugar
pinch of salt
1/2 cup chopped walnuts

Directions:

1. In a small saucepan, bring the apple juice to a boil, then add the oats or bulgur. Return to a boil, then cover and reduce the heat to a simmer. Cook for 10 minutes. Take the pan off the heat and let cool, uncovered. 
2. In a medium bowl, mix lemon juice with almond milk. Let sit for 5-10 minutes.
3. Preheat the oven to 350ºF. Oil a 9-inch square baking dish.
4. In a large mixing bowl, whisk the flour, baking soda, brown sugar, and salt. 
5. In the medium bowl add oil, vanilla, and oat mixture to the milk mixture. 
6. Mix into the dry ingredients, stirring until well mixed. Scrape the mixture into the prepared pan. 
7. Bake for 30 to 35 minutes, until the top is golden and a toothpick inserted into the center comes out clean.
8. While the cake bakes, make the topping. In a small bowl, mix the melted butter, vanilla, brown sugar, salt, and walnuts. When the cake is done, place it on a cooling rack. 
9. Turn the oven to broil, and put a rack 4 to 5 inches from the heat. Drop spoonfuls of the brown sugar topping over the cake, spreading it gently and leaving 1/2 inch bare around the edges. 
10. Broil with the door open, watching closely, just a minute. When the topping is bubbling and melted, take it out to cool. 
11. Serve warm, after the topping has set.

Other details:

• Serves 8