If you've ever wondered about the difference between making a batch of brownies on your own or with the assistance of Betty Crocker, find out at this workshop. The mystery is revealed as museum staff demonstrate and share the history of how baking mixes were developed. Visitors even get to taste the results and vote on their favorite. Get a few home baking tips and take home a recipe.(2 p.m. Sat. $6-$11. Mill City Museum, 704 S. 2nd St., Mpls. 612-341-7582)


The temperature may be below freezing, but with a little imagination, boaters can visualize themselves under the sun and floating on the lake at this expo. View a large selection of boats, RVs, the latest in marine electronics, tackle, hunting and fishing gear. Live entertainment, seminars, displays and information about outfitters and lodges. (Noon-9 p.m. today; 10 a.m.-9 p.m. Sat.; 10 a.m.-5 p.m. Sun. $2.50-$9. St. Paul RiverCentre, 175 West Kellogg Blvd., St. Paul. 763-755-8111.