Preheat oven to 350 degrees. Grease 1 8cups Bundt pan or 8-1 cup mini Bundt pans with Lemon olive oil.
In a large bowl, beat the sugar and the eggs together until light yellow and thickened. Add the lemon olive oil, lemon zest, vanilla and sour cream.
In another bowl, whisk together the dry ingredients. Add to the wet ingredients and whisk until no dry spots of flour remain. Fold in the blueberries reserving 1/2 cup for decoration. Bake the full size Bundt cake for 45-50 minutes, and the mini Bundt cakes for 25-30 minutes or until a tester comes out clean. Allow to cool for 20 minutes before inverting. Invert onto a serving platter. Allow the cake to cool fully. Add the blueberries to the glaze and toss to coat. Decorate the top and center of the Bundt cakes placing blueberries on top and allowing the glaze to run down the sides and soak into the cake. Serve immediately and enjoy!