First prepare the Earl Grey Crumble topping by combining the oats, flour, brown sugar in a medium bowl then cut open the Earl Grey tea bag & empty the contents into the bowl Cut in the cold vegan butter until crumbly. Set aside.
Melt the vegan butter in the cast iron pan over medium to high heat then add sliced & cored pears (skin on is your option) add the cinnamon & maple syrup & cook for 3-5 minutes to slightly tender, not mushy
Turn off the heat & let the pear mixture cool down in the cast iron pan while you prepare the cake batter
Preheat the oven to 350℉
Measure the plant milk & add the vinegar & vanilla extract
In a large mixing bowl combine the oil & brown sugar then add the plant milk mixture whisk smooth
Sift the flour, spices, baking powder & baking soda directly into the wet ingredients in the bowl & whisk to a smooth batter
Fold in the blackberries then pour the batter over the pears in the cast iron skillet
Sprinkle the crumble topping over the batter
Bake in the preheated 350℉ oven for 40-45 minutes or when a toothpick inserted into the center comes out clean
Whisk all the ingredients for the maple vanilla glaze together in a small bowl reserve until the cake is slightly cool, then drizzle over the entire top
Notes
Storage Cake can be kept at room temperature covered loosely to prevent drying for up to 3 days. Refrigerate for longer storage up to 1 week or freeze wrapped well for up to 1 month