Preheat oven to 325°F. Spray a 10-inch bundt pan with non-stick spray.
In the bowl of a stand mixer fitted with the paddle attachment, cream the butter on medium speed until smooth.
Gradually add the sugar and mix until light and fluffy.
Add the eggs, one at a time, mixing well after each addition. Scrape down the sides of the bowl as needed.
Slowly add the cake flour and mix on low speed until just combined.
Add buttermilk. Mix until just incorporated, scraping the bowl as needed.
Add the lemon extract, mixing until just combined.
In a small bowl, toss the chopped strawberries with 1 tablespoon of flour to help prevent them from sinking during baking.
Gently fold the floured strawberries into the batter.
Pour the batter into the prepared bundt pan. Bake for 85-90 minutes, or until a toothpick inserted into the center of the cake comes out with a few moist crumbs, but no wet batter. The crust should be a dark golden brown around the edges and lighter in the center.
Let the cake cool in the pan for 15–20 minutes, then invert onto a wire rack and cool completely before glazing.