Grease and flour or apply cake release to your Bundt pan with a pastry brush and set aside.
Preheat oven to 350° F. (If you are using a dark pan, preheat your oven to 325° F.)
Add flour, baking soda and salt to a medium mixing bowl.
Whisk flour baking soda and salt until combined. Set aside.
Add butter and sugar to the bowl of a stand mixer or a large mixing bowl using a hand mixer.
With the paddle attachment, beat butter and sugar on medium speed until light and fluffy, about 3 minutes. Scrape down the sides of the bowl with a rubber spatula as needed.
Reduce the speed to low and add eggs one at a time.
Add the flour mixture. Continue mixing on low speed until combined.
While still mixing on low speed, add the sour cream and lemon zest and mix until just combined. Increase the speed to high and beat for 2 minutes. (You may notice that the zest gets clumped on the paddle. You can incorporate that once you fold in the blueberries.)
Add blueberries to the bowl with the cake batter.
Fold blueberries into the batter. If there is any zest clumped onto the paddle attachment, scrape that off and incorporate into the batter with the blueberries.
Pour batter evenly into prepared Bundt pan. Smooth with a rubber spatula.
Bake cake for 50-70 minutes until golden brown. If your cake is getting too brown but is not yet done in the middle, you can place a piece of aluminum foil on the top of the cake to keep it from browning further. (I start checking the cake after it has baked for 50 minutes. Cake is done once a knife inserted into the middle comes out with a few crumbs attached.)
When cake is finished baking, remove from oven and let sit for 20 minutes.
Loosen edges of cake around pan and turn out onto a wire cooling grid. Cool completely.
Once the cake is cooled, add powdered sugar to a small mixing bowl for the glaze.
Add the lemon juice to the powdered sugar.
Whisk powdered sugar and lemon juice together until smooth.
Decorate cake with powdered sugar using a sugar duster . (Optional)
Drizzle glaze onto cake with a fork.
Add additional blueberries and lemons to decorate cake. (Optional)
Serve and enjoy!