Preheat oven to 350* F. Prepare a 10-12 cup bundt pan by greasing it liberally with vegetable shortening and dusting it with flour.
In a medium bowl, combine flour, baking powder, baking soda and salt. Whisk to combine and set aside.
2 ⅔ Cups All-Purpose Flour, 2 ½ teaspoon Baking Powder, ¼ teaspoon Baking Soda, ¼ teaspoon Kosher Salt
In a large bowl, combine sugar, non-dairy milk, melted vegan butter, lemon zest, lemon juice and vanilla. Whisk to combine. Then, add the dry ingredients and whisk to form the batter.
1 ½ Cups Sugar, 1 ½ Cups Non-Dairy Milk, 12 tablespoon Vegan Butter, melted, 2 tablespoon Lemon Zest, lightly packed, 2 tablespoon Lemon Juice, 2 teaspoon Vanilla Extract
Pour the cake batter into the prepared bundt pan and use a spatula to even the top out. Bake in a 350* F oven for 43-47 minutes, or until a toothpick inserted into the thickest part of the cake comes out clean.
Allow the cake to cool for about 45 minutes, then gently flip it onto a cake stand or cake plate to continue cooling.