Enter at the 1099-INT screen (unless you got a 1099-DIv), even if you didn't get one. Type> form 1099-int <in the find box
The interest goes in box 8 of the 1099-Int (or box 11 of a 1099-DIV).
You will not see those boxes until you click on "My form has info in more than just box 1" (or something similar).