Elizabeth Banksofficially has her hands full!

Welcoming Felix, 20 months, via surrogate in March 2011, the Hunger Games actress revealed this week that she and her husband recently became second-time parents to a baby boy named Magnus, also born via gestational surrogate.

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Stepping out on Thursday for the first time since revealing her big news Nov. 14, the no doubt sleep-deprived mama looked effortlessly chic as she ran errands, doting on eldest son Felix at a Whole Foods in Los Angeles. Casually-dressed in red pants, tan sweater and cap, Banks, 38, sipped an iced coffee as she and Felix shopped.

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"As 2012 winds down and Thanksgiving approaches, I have much for which to be thankful -- personal, professional and Presidential," Banks wrote on her website when announcing her family's happy news. "However, nothing can match the joy and excitement my husband and I felt when we recently welcomed our second baby boy, Magnus Mitchell Handelman. Magnus joins older brother Felix, thus commencing a decade or more of close hand-to-hand combat."

Maintaining a close relationship with the surrogate who carried Felix, Banks will likely need all the extra babysitting help she can get as her sons grow.

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Now, "I . . . turn my attention to managing two boys under two," the actress says. "For which I am thankful. And all their poop. For which I am less thankful. Wish me luck."

Banks -- who also appears in Pitch Perfect -- married author Handelman, her college boyfriend, in 2003.