Preheat oven to 325 degrees F. Grease and flour a 12-cup Bundt pan or 10-inch tube pan--baking spray is recommended for it's ease of use.
Batter is thick, so a good-quality stand mixer is recommended.
*2 tsp lemon juice + enough milk to make 3/4 cup may be substituted for the buttermilk.
Mix the flour, baking soda, baking powder and salt in a small bowl and mix well to blend.
Cream butter and sugar until light and creamy.
Add eggs, one at a time, until well blended.
Add the flour alternately with the buttermilk, beating well after each addition and ending with a flour addition.
Mix in the lemon zest and lemon juice.
Spoon into prepared pan and run a knife through the batter to release any trapped air bubbles.
Bake for 50-60 minutes, or until a toothpick inserted in the center comes out clean.
Cool in pan 10 minutes, then invert onto a plate to cool completely.
Mix glaze ingredients in a small bowl, adding only enough cream/milk to get a consistency that is thick, but will drizzle.
When cake is cool, drizzle with glaze