The Corner Bakery
Restaurants offers the following deal.
30% off Your Purchase [fbmta.com]
Valid through Saturday, August 11, 2018
I've found that the Corner Bakery allows you to show coupons from your phone. The coupon at the link above does not specify.
It appears this can be used on anything except catering or gift cards. So, it may apply to cakes, pastry items, and coffee, in addition to typical breakfast, lunch, & dinner entrees.
Valid online or in cafe at participating restaurants.
Corner Bakery Restaurant Locator [cornerbakerycafe.com]