Source: mommyhoodlife.com
Source: thecozycook.com
Source: yourcupofcake.com
For this coffee cake, you can use chocolate chips, cinnamon, powdered sugar, brown sugar, and walnuts as written. You can also substitute some fruit for the chocolate chips.
Source: mrfood.com
Source: 2beesinapod.com
Source: sizzlingeats.com
Source: simplybeingmommy.com