Preheat the oven to 400F/ 204 C and line the muffin tin with 9 liners or grease the muffin tin well so that it will not get stick and set aside.

In a medium bowl, mix, flour, baking powder, cinnamon ,salt and keep aside.

In a large bowl add sugar, melted butter, egg , milk , vanilla extract and mix well then add sourdough starter and combine once again.

Then add dry ingredients to wet ingredients and combine well. If you see some dry bits of flour is there that is okay do not overmix it.

Then fold in ¾ cup of strawberries and ½ cup + 2 tablespoon semi sweet chocolate chips into the dough, rest reserve for garnishing on the top of muffin.

Transfer the dough to prepared muffin tin. Top with reserved strawberries and chocolate chips.

Bake at 400F/ 2104 C for 15 minutes and or until toothpick comes out clean.

Transfer the muffin to wire rack and cool completely . You can keep this muffin in room temperature for 2-3 day. If you want to keep longer period freeze the muffins.

Enjoy with cup of coffee or tea.