In the bowl of a stand mixer fitted with the paddle attachment, beat butter and sugar at mediumspeed until fluffy, 3 to 4 minutes, stopping to scrape sides of bowl.
Add egg yolks, one at a time,beating well after each addition.
In a medium bowl, whisk together flour, salt, and baking soda. With mixer on low speed, gradually add flour mixture to butter mixture alternately with buttermilk, beginning and ending with flourmixture, beating just until combined after each addition. Stir in pecans, coconut, and vanilla.
Transfer batter to a large bowl.
Clean bowl of stand mixer.
Using the whisk attachment, beat egg whites at high speed until stiffpeaks form.
Gently fold egg whites into batter.
Spread batter into prepared pan, smoothing topwith an offset spatula.
Bake until a wooden pick inserted in center comes out clean, about 45 minutes, loosely coveringwith foil halfway through baking to prevent excess browning.
In a small bowl, stir together condensed milk and almond liqueur. Using a fork, poke holes in top ofwarm cake.
