ring milk to simmer in a small saucepan; add Acacia Honey and lavendar. Stir until honey dissolves. Remove from heat; cover and let steep 30 minutes. Meanwhile, preheat oven to 350F. Butter and flour decorative 10-cup fluted pan or Bundt pan. Whisk dry ingredients in a medium bowl. Strain milk mixture into another medium bowl; discard solids. Whisk sour cream into milk mixture to blend. Using an electric mixer, beat 1 cup sugar and butter in a large bowl until light and fluffy. Add eggs one at a time, beating until blended after each addition. Add flour mixture alternately with milk mixture in 3 additions each, beating just until smooth. Transfer batter to prepared pan; smooth top with rubber spatula. Bake bread until tester inserted near center comes out clean, about 45 minutes. Cool bread in pan on rack 10 minutes. Turn out onto rack and cool completely. Dust with powdered sugar before serving 8-10 servings.