diff --git a/persistence/session.go b/persistence/session.go
new file mode 100644
index 0000000..6d2c020
--- /dev/null
+++ b/persistence/session.go
@@ -0,0 +1,22 @@
+package persistence
+
+import (
+	"offline_twitter/scraper"
+)
+
+func (p Profile) SaveSession(api scraper.API) {
+	// TODO session-saving:1
+	// - To understand what's going on here, look at the `MarshalJSON` function in `scraper/api_request_utils.go`,
+	//   and the output of `git show 390c83154117aa2a339a83f05820fb904a32298e`.
+	// - use `json.Marshal` on the API object and write the resulting bytes to like "[api.UserHandle].session" or something
+	// - use `os.WriteFile` to write the file
+	panic("TODO")
+}
+
+func (p Profile) LoadSession(userhandle scraper.UserHandle) scraper.API {
+	// TODO session-saving:2
+	// - use `os.ReadFile` to read "[userhandle].session"
+	// - create a variable of type scraper.API
+	// - use `json.Unmarshal` to load the file contents into the new API variable
+	panic("TODO")
+}
diff --git a/persistence/session_test.go b/persistence/session_test.go
new file mode 100644
index 0000000..5b706a2
--- /dev/null
+++ b/persistence/session_test.go
@@ -0,0 +1,28 @@
+package persistence_test
+
+import (
+	"github.com/go-test/deep"
+	"offline_twitter/persistence"
+	"offline_twitter/scraper"
+	"testing"
+)
+
+// Save and load an API session; it should come back the same
+func TestSaveAndLoadAuthenticatedSession(t *testing.T) {
+	assert := assert.New(t)
+	profile_path := "test_profiles/TestSession"
+	profile := create_or_load_profile(profile_path)
+
+	api := scraper.API{
+		// TODO session-saving
+		// - Fill out some fields here like Cookies and CSRFToken and UserHandle
+	}
+
+	// Save and load the session; it should come back the same
+	profile.SaveSession(api)
+	new_api = profile.LoadSession(api.UserHandle)
+
+	if diff := deep.Equal(api, new_api); diff != nil {
+		t.Errorf(diff)
+	}
+}