Preheat the oven to 325 degrees.
Spray a 9x5 loaf pan with cooking spray - set aside.
In a mixer bowl - beat the butter and sugar together until pale & fluffy.
Scrape down the sides and add the eggs - beat in.
Add in the flour, baking powder, and salt - beat well.
Mix in the sour cream and lemon juice - beat until combined.
Scrape down the bowl and mix on low for another 30 seconds.
Transfer the batter to the prepared dish and bake for 55-70 minutes, watching closely in the last 10 minutes.
Cake is done when toothpick test comes out clean.
Cool on a wire rack for about 10 minutes and then turn out of the pan.
While the cake is cooling - combine syrup ingredients in a small saucepan and heat over medium heat until all the sugar has dissolved.
Brush the syrup over the cake while it's cooling.
Cool the cake completely before adding the glaze.
Whisk together the ingredients and pour the mixture over the cake.