The Sugared Strawberries: (The Strawberries should be measured after you have chopped them.) Chop the strawberries and place in a small bowl with a lid or cover. Add the granulated sugar and give a stir. Place in the refrigerator for at least one hour up to overnight. I think the longer the strawberries sit in the sugar, the more the flavor of the strawberries will come out,
1 cup diced strawberries , ¼ cup granulated sugar
Cook the Strawberries: Add the sugared strawberries along with their juices to a small saucepan along with the lemon juice and cornstarch. Bring to a simmer over medium heat and cook for 3-5 minutes, stirring often and mashing around with a potato masher, until thickened and jam-like. Remove from heat. Set aside to cool while making the rest of the cake.
1 cup diced strawberries , ¼ cup granulated sugar, 1 tablespoon lemon juice , 2 teaspoons cornstarch
Prepare oven and pan: Preheat the oven to 350°F. Use vegetable shortening to grease the 8x8 pan.
Make the Crumb Topping: In a small bowl, combine the, flour and sugar. Cut the cold vegan butter into the flour mixture. Use a fork or your fingers to miix until you have a uniform light crumb. Sprinkle the vanilla extract on top and toss into the crumb topping. Set aside in the refrigerator while making the batter.
5 tablespoons all-purpose flour , ¼ cup granulated sugar , 3 tablespoons vegan butter, ½ teaspoon vanilla extract, ⅛ teaspoon salt
Make the flax egg: In a small bowl, mix the ground flaxseed with water. Set aside for 5 minutes to thicken.
1 tablespoon ground flaxseed , 2½ tablespoons water
Cream the oil and sugars: In a medium bowl, use a hand mixer to cream together the avocado oil, brown sugar, and granulated sugar until light and fluffy, about 2minutes.
⅓ cup avocado oil, ¼ cup granulated sugar , ½ cup brown sugar
Add the wet ingredients: Mix in the flax egg, sourdough discard, soy milk, lemon juice, vanilla extract, and almond extract until smooth and creamy. It should be thick like a very thick muffin batter.
1 tablespoon ground flaxseed , 2½ tablespoons water, ½ cup sourdough discard, ½ cup soy milk, ½ tablespoon lemon juice, ½ tablespoon vanilla extract, ½ teaspoon almond extract
Combine the dry ingredients: In a separate bowl, whisk together the flour, baking powder, baking soda, and salt.
1¼ cups all-purpose flour , 1½ teaspoons baking powder, ½ teaspoon baking soda , ½ teaspoon salt
Make the batter: Add the dry ingredients to the wet mixture and stir/mix until just combined. Do not overmix. The batter will be thick.
Prepare to bake: Spread the batter evenly over the prepared pan. Spoon the strawberry mixture in dollops over the batter. Use a knife to gently swirl the strawberries through the batter. (Do not over-swirl.)
The crumb topping: Sprinkle the crumb topping evenly over the cake.
Bake: Bake at 350℉ for 40–45 minutes, or until a toothpick inserted in the center comes out mostly clean (strawberry juice is fine).
Cool and serve: Allow the cake to cool completely before slicing into squares.