Pre heat oven at 350°F or 180°C
Peel and cut apples in 1/2 inch pieces and add a tbsp of brown sugar and spice mix
Sift together both the flour, baking powder, baking soda, salt, 1 tsp of Chai spice together.
Mix together wet ingredients olive oil, both the sugars, yogurt, chia gel. Mix till the sugar dissolves.
Add the wet ingredients in dry. Fold in the mixture. Don't beat the mixture just, combine the ingredients.
Fold in half of the nuts and spiced apples.
Add apple cider vinegar just before transferring the batter to cake pan.
Transfer the batter to a well-greased and dusted cake pan. Top it with remaining spiced apple pieces and nuts.
Bake in a pre-heated oven at 350°F or 180°C for 40-50 mins. Check if the cake is done using a toothpick.
Once done, take out of the oven, transfer it to a cooling rack, cut and serve enjoy with butterscotch or caramel sauce. or your cuppa hot coffee/chai.