(CBS) No party’s complete without a cake, and so on the 100-year anniversary of Wrigley Field opening, they went big for the historic ballpark.

A 400-pound birthday cake commemorating Wrigley Field is on display outside the park this morning as the Cubs ready to play the Diamondbacks at 1:20 p.m.

READ MORE: Security Guard In Critical Condition After Falling 15 Feet Into Hole In Aurora Parking Lot

The four-by-five-foot cake was made by Carlo’s Bakery. It will later be moved across town for the team’s Bricks and Ivy Charity Ball.

READ MORE: Chicago Weather: Another Mostly Sunny Day Ahead; Frost Advisory In Effect In Northwest Indiana

Here’s a few photos from Danny Ecker of Crain’s Chicago Business on Twitter. He reported that it took four people six days to make.

MORE NEWS: Thieves Keep Using Postal Master Keys To Steal Mail: How Are They Getting A Hold Of Those Keys?

The four-by-five-foot cake, which was made by Carlo’s Bakery of Cake Boss fame, will be outside the stadium for today’s centennial celebration before heading across town for the team’s annual Bricks and Ivy Charity Ball.