Money National Pancake Day 2020: Get a $2 stack of pancakes at Denny’s Saturday, try Cheesecake Factory’s recipe September 26, 2020 Kelly Tyko, USA TODAY Comments Off on National Pancake Day 2020: Get a $2 stack of pancakes at Denny’s Saturday, try Cheesecake Factory’s recipe Sept. 26 is National Pancake Day. At Denny's, get a $2 stack of pancakes Saturday, plus here's where to sign up for pancake deals.