In a large bowl, using an electric mixer, beat the butter and sugar on medium speed for 1 to 2 minutes until light and fluffy.Scrape the sides and bottom of the bowl with a rubber spatula. Add the eggs and almond extract; beat for 1 minute until blended and smooth. Stir in flour mixture by hand until just blended. Stir in berries.
Tightly cover the bowl and refrigerate for 1 hour and up to 24 hours.